Consider each of the electric- and magnetic-field orientations. a. what is the direction of propagation of the wave if e? =ei^,b? =? bj^. express the direction of the propagation vector, p? , as a unit vector. its three components should be entered in order (x, y,z) separated by commas. for example, if the wave propagates only in the -x direction, enter -1,0,0. < -- for all of themb. what is the direction of propagation of the wave if e? =ej^,b? =bi^. c. what is the direction of propagation of the wave if e? =? ek^,b? =? bi^. d. what is the direction of propagation of the wave if e? =ei^,b? =? bk^.

How much work is done lifting a 9.10 kg box straight up onto a shelf that is 1.80 m high?

A2k pendulum has a speed of 1 m/s at a height of 1/2 meter

Assume that two of the electrons at the negative terminal have attached themselves to a nearby neutral atom. there is now a negative ion with a charge -2e at this terminal. what are the electric potential and electric potential energy of the negative ion relative to the electron? the electric potential and the electric potential energy are both twice as much. the electric potential is twice as much and the electric potential energy is the same. the electric potential is the same and the electric potential energy is twice as much. the electric potential and the electric potential energy are both the same. the electric potential is the same and the electric potential energy is increased by the mass ratio of the oxygen ion to the electron. the electric potential is twice as much and the electric potential energy is increased by the mass ratio of the oxygen ion to the electron.